The 32oz Insulated Water Bottle features stainless steel double-wall construction, vacuum insulated for 2X cold and heat retention compared to glass or plastic containers. The top of the removable lid has an easy flip up mouthpiece which is connected to a detachable straw so it can be washed easily. Around the lid there are raised sections/ridges in the plastic so it can be tightened and loosened with ease. On the lid, there is a plastic loop with rubber lining on the inside to make it easy to carry, or to put a carabiner or string/rope through. The soft rubber holder along with textured sweat-free powdercoat make this water bottle the gold standard for drinks on the go!